Treadle mechanism for bed lasting-machines.



H. A. BALLARD.

TREADLE MECHANISM FOR BED LASTING MACHINES.

' APPLICATION FILED DEC. 16. l9l4. 1,176579. Patented Mar. 28,1916.

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H. A. BALLARD.

TREADLE MECHANISM FOR BED LASTING MACHINES.

APPLlCATlON FILED DEC. 16. 1914.

1,176,879. Patented Mar. 28,1916.

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UNITED s rarns; Parana OFFICE.

HARRIE A. BALLARD, OF BOSTON,MASSAGHUSETTS, ASSIGN'OR TO THE BOYLSTON MANUFACTURING- COMPAPIY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF NEW JERSEY.

TREADLE MECHANISM FOR BED LASTING-MACHTNES.

Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed December 16, 1914. Serial No. 877,582.

To all whom it may concern:

Be itknown that I, HARRIE A. BALLARD, a citizen of the'United States, and resident of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Treadle Mechanisms for Bed Lasting-Machines, (Case 13,) of which the following is a specification.

In my copending application, Serial No. 877,581, filed December 16, 1914;, I have shown a bed lasting machine provided with treadle mechanism whereby the end-wiping mechanism is lifted bodily and retracted horizontally in consequence of a simple downward movement of the treadle. The end-wiping mechanism is initially locked against l'liori-zontal retractory movement; and the treadle mechanism referred to, in addition to moving the end-wiping mechanism in the two directions stated, performs one other function, namely, unlocking the end-wiping mechanism preparatory to im parting horizontal retractory movement to the latter. Summarizing the functions of the-said treadle mechanism, it may be stated that they are three in number, as follows:

(1) lifting the end-wiping mechanism, (2)v unlocking the end-wiping mechanism; (3) retracting the end-wiping mechanism hori-j zontally.

The present invention relatesto substantially the same subject matter as the aforesaid copending application; but the difference is that in the present'application the treadle mechanism performs only the first and second functions above enumerated, leaving the horizontally V retractory movement of the end-wiping mechanism to be otherwise effected. The treadle mechanism hereinafter-described, and illustrated by the accompanying drawings, is much simpler than the corresponding mechanism in the said copending application, and in addition to being simpler it may be made at less cost.

Referring to the accompanying drawings: Figure 1 represents, in front elevation, the heel-end of a bed-lasting machine, the endwiping mechanism which operates upon the heel of a shoe being shown inoperative position and being locked in such position. Fig. 2 represents a front elevation of the heelportion of a shoe substantially as shown by Fig. 1, a wiper, being represented conventionally in operative engagement with the pulled-over portion of the upper. Fig. 3 represents a view, similar to Fig. 1 but on a larger scale and partly in section, of the mechanism whereby the end-wiping mechanism is unlocked preparatory to being retracted. Fig. t represents a sectional view I have shown only one end of a bed-lasting machine; but it is to be understood that the mechanism, as shown is duplicated in all essential respects at the other end of the machine, so that the complete machine is equipped with two complete and independent units each of which is substantially like that shown.

The main frame of the machine is indicated at 20. It is provided with vertical guides 21 at each end, said guides coacting respectively with vertically movable supports, one of which is indicated at 22. This support is in the form. of a bracket and is formed with horizontal guides '23 which havetongue-and-groove connection with a horizontally movable carriage 24. This carriage carrier end-wiping mechanism which is indicated as a whole at 25, said mechanism in the present instance being that for operating upon the heel-end of the shoe.

Theldetalils of the wiping mechanism may be of any suitable structure and arrangement. 'A heel-wiper is indicated at 26 in Fig. 2, the representation in this figure being sufficient for the purposes of this application. Referring again to Fig. 1, the main frame or base of the heel-wiping mechanism is indicated at 27. This frame is arranged upon a pivot member 28 carried by the carriage 24, the end-wiping mechanism as a whole being capable of tilting about said pivot for the purpose of adjusting the wipers according to the plane of the heel seat of the shoe. For the purpose of effecting such adjustment the frame 27 is provided with an adjusting' screw 29, said screw having suitable swivel connection with the carriage 24 and with the frame 27. The frame 27 is also provided with an adjusting device 30 whereby the wipers may be tilted laterally. As the I adjusting devices do not enter into the appended claims, no further reference to them (adjusting devices) will be necessary.

A shoe is indicated at it, and a last is indicated at a. The last is mounted upon a heel jack 31. Said jack is arranged to slide horizontally on guides 3-1 formed upon a base 35, said base being affixed to the main frame 20. The drawings do not show a toe jack, but it may be assumed that a toe jack suitable for the purpose is mounted upon the base 35.

A toothed rack 50 is aflixed to the carriage .24 and is enmeshed with a pinion 51. This pinion is aflixed to a shaft 52 which is mounted in suitable bearings in'the support 22. The front end of the shaft is provided with a hand wheel 54. by which the pinion may be rotated tomove the carriage 24 toward and from the shoe. The hand wheel has a ratchet 55 (Fig. 3) which is engaged by a looking or retaining pawl 56, said pawl being arranged to permit rotative movement of the hand wheel in one direction to move the carriage toward the shoe, and to prevent movement in the opposite direction, excepting when it (the pawl) is disengaged from the ratchet as hereinafter explained.

A link85 is connected to the support 22 by a pivot member 86, and is likewise connected by a pivot member 87 (Fig. 1) to a lever 88. This link is made up of a plurality of pieces including aturnbuckle 89 whereby the effective length of the link may be varied for adjusting purposes. The turnbuckle is provided with a hand wheel 90. The lever 88 as shown by Fig. 1 is formed as an integral part of a treadle which has a foot-engaging portion 92 and a foot-engaging portion 93. This treadle i arranged upon a shaft 91 which is suitably supported by brackets formed upon the main frame 20.

' The foot-engaging portions 92 and 93 are arranged oppositely with relation to the axis on which the treadle rocks, so that downward pressure upon the portion 92 will exert downward stress upon the end-wiping mechanism to set or creasethe pulled-overportion of. the upper, while downward movement of the foot-engaging portion 93 will lift the end-wip1ng mechanism out of conworkman may, by slightly depressing the foot-engaging portion 93, raise the wipers sufliciently to enable them to move inwardly upon the pulled-over portions of the upper. When the workmans foot is removed from the treadle while the wipers are upon the work as shown by Fig. 2, the entire weight of the support 22 and all the mechanism mounted thereon is sustained bythe pulledto the pawl by a pivot member 60. Said rod has telescopic connection with a lifting rodu6l, the rods 59 and 61 being arranged to act conjointly, as will be understood after furtherv description, to disengage the pawl 56 from the ratchet.

dle 92, 93. For convenience, this treadle will be hereinafter referred to as the main treadle. The axis of stud 62 is in line with the axis of pivot member 87, in consequence of which arrangement the up and down movements of rod 61 are commensurate with such movements of link 85 and support 22.

Rod 59 is provided with a series of teeth p The lower end of rod 61 bears upon: astud 62 carried by the trea- 63, and a lifting dog 641 is mounted upon the rod 61 in position to-coact with any one of said teeth, according to the relative positions of 59 and 61, The lifting dog is arranged upon a pivot member 65. A rod 66, pivotally connected to the lifting dog by a pin 67, extends loosely through a bearing 685.

in rod 61 and bears upon'a lever 69. This lever is arranged upon the shaft 91 and is provided with a foot-engaging portion 70 which for convenience will be hereinafter termed the supplemental treadle. When the supplementaltreadleis depressed relativelytothe main tradle, it lifts the rod 66 and'thereby moves the dog 64 into engagement with one of theteeth 63. This movement of the dog is very slight because of the slight initial clearance between it and the series of teeth 63, andconsequently any additional movement of the treadle70 after taking up such'clearance will result in lifting rods 61'a'nd 59, thereby retracting the locking pawl 56. I have arranged the supplemental treadle and main treadle in such relation that the workman, by a simple downward movement of his foot, may depress first one and then both, to first unlock the end-wiping mechanism, and then 7 lift the end-wiping mechanismbodily from,

the work, The main treadle, as shown by Fig. at, is overlapped by the supplemental treadle and is formed with a' depression 71.

into which the supplemental treadle may enter until the foot-engaging surfaces of the two treadles are flush The supplemental treadle is normally raised, asshown by Fig. 1, a tension spring 72 (Fig. 5) be-x ingprovided forthis purpose. The lower] nd. of spring72 is anchored to stud 62, and the upper end is "engaged with a setscrew 73. The setscrew is threaded in a collar (4, said collar beingarranged upon the rod 66 and being capable of adjustment thereon to vary the elfectiveforce of the spring.

Fig. 4 includes a broken line 75 which represents the outline of the foot. A foot in the position indicated would overlap the supplemental treadle 70, but after depressing the supplemental treadle sufficiently to take up the distance between the two treadles would move both treadles in unison. The initial movement of the supplemental treadle would retract the pawl 56 from the ratchet 55, and the subsequent movement of the main treadle would lift the wipers from the shoe, the continued movement of the supplemental treadle while the main treadle is moving being effective for keeping the pawl in retracted position. The end wiping mechanism upon being unlocked .and lifted as aforesaid is free to be retracted horizontally, and such retractory movement may be effected by giving the hand wheel a whirl while the treadles are held depressed. When the foot is removed from the treadles the weight of the support 22 and the mechanism mounted thereon depresses the footengaging portion 92 as far as the floor will permit, and the spring 72 draws the rod 66 downwardly to disengage the lifting dog 64 from the teeth 63 and to return the supplemental treadle to the position shown by Figs. 1 and 3. The dog 64, being normally disengaged from the teeth 63, leaves the rod 59 free to slide up and down relatively to the rod 61, as for example when thework man depresses the foot-engaging portion 93 to carry the wipers up over the pulled-over portion of the upper. At such time the workmans foot would not overlap the supplemental treadle 70.

I claim:

1. In a machine of the character described, work-supporting means, end-wiping mechanism, a carriage, said end-wiping'mechanism being arranged on said carriage, a support for said carriage, said carriage being movable relatively to said support toward and from the work, locking means arranged to lock .said carriage against such relative movement away from the work, said support being movable up and down, and treadle mechanism arranged to lift said support and actuate said locking means to un-' lock said carriage.

2. In a machine of the character described, work-supporting means, a horizontally movable support, a vertically movable support, one of said supports being arranged upon the other, end-wiping mechanism arranged upon said one of said supports, means arranged to lock said horizontally movable support against movement away from the work,

' and treadle mechanism arranged to lift said vertically movable support and actuate said locking means to unlock said horizontally movable support.

i 3. In a machine of the character described, work-supporting means, end-wiping mechanlsm, a horizontally movable carriage, said end-Wiping mechanism being arranged upon said carnage, a support arranged to be movable up and down, said carriage being arranged upon said support, manually operable means on said support arranged to move said carriage toward and from the work, means arranged to lock said carriage against horizontal movement away from the work, and'treadle mechanism arranged to lift said support and actuate said locking means to unlock said carriage.

4. In a machine of the character described, work-supporting means, end-wiping mechan sm, a carriage for said end-wiping mecha- IllSIll arranged to be movable up and down and horizontally toward and from the work, locking means arranged to lock said carriage against horizontal retractory movement, and two independently operable treadle mechanisms arranged to actuate said locking means and lift said carriage respectively, to unlock said carriage and lift said end-wiping mechanism from the work, one of said treadle mechanisms being arranged to operate the other.

5. In a machine of the character described, work-supporting means, end-wiping mechanism, a carriage for said end-wiping mechanism arranged to be movable up and down and horizontally toward and from the work,

''locking means arranged to lock said carriage against horizontal retractory movement, a main treadle and a supplemental treadle 0perable independently of each other, means connecting said main treadle and carriage for lifting the latter, and means arranged to transmit motion from said supplemental treadle to said locking means to unlock said carriage, one of said treadles being arranged to actuate the other.

6. In amachine of the character described, work-supporting means, end-wiping mechanism, a carriage for said end-wiping mechanism arranged to be movable up and down and horizontally toward and from the work, locking means arranged to lock said carriage against horizontal retractory movement, two treadles operable independently of each other, means arranged to transmit motion from one of said treadles to said carriage to lift and depress said carriage, and means arranged to transmit motion from the other one of said treadles to said locking means to unlock said carriage, one of said treadles being arranged to operate the other.

7. In a machine of the character described, work-supporting means, end-wiping mechanism, a carriage for said end-wiping mechanism arranged to be movable up and down and horizontally toward and from the work,

locking means arranged to lock said carriage against horizontal retractory movement, tWo treadles operable independently of each other, means arranged to transmit motion from one of said treadles to saidcarriage to lift and depress said carriage, and means arranged to transmit motion from the other one of said treadles to said locking means to unlock said carriage, said treadles being arranged to be engaged simultaneously by asingle foot and operated in unison by such foot. 7

8. In a machine of the character described, Work-supporting means, end-Wiping mecha nism, a carriage for said end-Wiping mechanism arrranged to be movable up and down and horizontally toward and from the Work, locking means arranged to lock said carriage against horizontal retractory movement, a treadle and means arranged to transmitmotion therefrom to said locking means to un lock said carriage, a treadle and means arranged to transmit motion therefrom to lift said carriage, one'of said treadles being arranged to be engaged and depressed by a foot in the act of depressing the other.

9. In a machine of the character described, Work-supporting means, end-Wiping mechanism, a carriage for said end-wiping mechanism arranged to be movable up and down and horizontally toward and from the Work, locklng means arranged to lock said carriage against horizontal retractory movement, a

treadle and means arranged to transmit motion therefrom to said locking means to unlock said carriage, a treadle and means arranged to transmit motion therefrom to'lift said carriage, said unlocking treadle being arranged to have unlocking movement independently ofsaid lifting treadle and to'impart lifting movementto said lifting treadle.

10. In a machine of the character de-.

scribed, end-Wiping mechanism, a carriage movable up and down, a treadle and means arranged to transmit "motion therefrom to lift said support, "a treadle and adjustable connections arranged to transmit motion therefrom to said locking meansto unlock said carriage, said connections being ar- 7- ranged to be adjusted by up and down motion of said support to compensate for changing relation of said locking means and unlocking treadle. V

- In testimony whereof I have affixed my signature, in presence of two Witnesses.

, HARRIE A. BALLA RD, Witnesses CAPEN, V CHAS. C. DODGE.

Copies of this patent may be obtained forfive cents each, by addressing the Commissioner of Patents.

'Washington, D. O. 

